header {
    .top_nav {
        height: 3rem;
        background-color: #ececec;
        text-align: center;
        line-height: 3rem;
        padding: 0 10px;
        box-sizing: border-box;
        a{
            color: #929292;
            padding: 0 10px;
            border-right: 1px solid #b1b1b1;
        }
        li {
            float: left;
        }
        .left_nav{
            li:last-of-type{
                 a{
                    border-right: 0 none;
                }
            }
        }
        .right_nav{
            li:last-of-type {
                a{
                    border-right: 0 none;
                }
        span{
                color: #ff232d;
            }
        }
    }
}
}